def setUpModule():
    print('setupModule')

def tearDownModule():
    print('tearDownModule')

def setUp(self) -> None:
    print('setUp:计算器开机。。')

def tearDown(self) -> None:
        print('setUp:计算器关机。。')


@classmethod
def setUpClass(cls) -> None:
    print('setUpClass:买计算器。。')


@classmethod
def tearDownClass(cls) -> None:
    print('setUpClass:扔计算器。。')


